Longines · Master Collection

Strap for Master Collection 42 Date Stainless Steel / Green - Roman

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter42 mm
ReferenceL2.893.4.09.2
FamilyMaster Collection
MovementLongines caliber L888.5 hours, minutes, seconds | date | chronometer
Year2022
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Master Collection L2.893.4.09.2

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Master Collection L2.893.4.09.2, seen from the bench

The Longines Master Collection features the L888.5 caliber with chronometer certification and indication of hours, minutes, seconds and date. The model with reference L2.893.4.09.2 has 21mm lugs. The movement offers the essential watchmaking functions with certified chronometric precision.

Frequently asked questions

What is the lug width of the Longines Master Collection L2.893.4.09.2?

The lug width of this model is 21mm, a standard dimension that ensures broad compatibility with aftermarket straps. To verify accurately, remove the original strap and measure the internal space between the two lugs using a digital calliper or ruler. This fixed dimension guarantees ease of replacement without modifications.

Which strap would you recommend for the Master Collection L2.893.4.09.2?

The choice depends on intended use and aesthetic preferences. Alligator in dark brown or black enhances the formal character and develops fascinating patina over time. Vegetable-tanned calf leather offers softness and daily comfort. NATO in canvas provides sportive practicality and quick changes. Vulcanised rubber strap combines resistance and minimal maintenance. For evening occasions, burgundy shell cordovan represents the most sophisticated choice.

How do I change the strap on the Longines Master Collection?

Remove the watch from your wrist. Use a dedicated tool (spring bar tool) to gently compress the small spring inside the lug, then slide the strap free from the lug holes. Repeat on the opposite side. Insert the new strap by aligning the tabs with the lugs and allowing the spring to click into place. The procedure takes minutes and requires no technical expertise.

Are aftermarket straps available for the L2.893.4.09.2?

Yes. Milanostraps offers a comprehensive selection of 21mm straps in various materials: alligator, calf leather, shell cordovan, NATO and vulcanised rubber. All straps are customisable in length, initials and stitching thread choice. For a complete bespoke experience, the Casati Milano atelier crafts made-to-measure straps with personal leather selection and 18-month guarantee.

How long does a leather strap for the Longines Master Collection last?

Durability depends on material, tanning process and use. Quality vegetable-tanned alligator typically resists 3-5 years with moderate daily use and proper maintenance. Calf leather has similar longevity but requires greater humidity protection. Shell cordovan proves more durable (5-7 years) thanks to natural leather density, whilst NATO and vulcanised rubber straps maintain structural integrity for 7-10 years. Patina on leather indicates natural ageing, not deterioration.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only